zfs.tier.config =============== .. raw:: html
Placeholder identifier. Not used; there is only one configuration instance.
Whether the ZFS tier service is enabled.
Maximum number of rewrite jobs that execute simultaneously. Jobs submitted beyond this limit are held in a QUEUED state until a slot becomes available (1-10).
Value must be greater or equal to 1 and lesser or equal to 10
Abort rewrites when filesystem usage reaches this percentage threshold (70-95).
Value must be greater or equal to 70 and lesser or equal to 95
Percentage of PERFORMANCE tier space reserved for metadata. Metadata is always written to the PERFORMANCE tier, but data is only placed there while allocated space stays below 100 - special_class_metadata_reserve_pct percent of total PERFORMANCE tier capacity. Beyond that threshold data falls back to the REGULAR tier. Corresponds to the ZFS kernel parameter zfs_special_class_metadata_reserve_pct (default: 25).
Value must be greater or equal to 10 and lesser or equal to 30